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Installing Argo CD

First lets install Argo CD in our cluster:

~$helm repo add argo-cd https://argoproj.github.io/argo-helm
~$helm upgrade --install argocd argo-cd/argo-cd --version "${ARGOCD_CHART_VERSION}" \
  --namespace "argocd" --create-namespace \
  --values ~/environment/eks-workshop/modules/automation/gitops/argocd/values.yaml \
  --wait
NAME: argocd
LAST DEPLOYED: [...]
NAMESPACE: argocd
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
[...]


For the purpose of this lab the Argo CD server UI has been exposed outside of the cluster using Kubernetes Service of Load Balancer type. To get the URL from Argo CD service run the following command:


~$export ARGOCD_SERVER=$(kubectl get svc argocd-server -n argocd -o json | jq --raw-output '.status.loadBalancer.ingress[0].hostname')
~$echo "ArgoCD URL: https://$ARGOCD_SERVER"
ArgoCD URL: https://acfac042a61e5467aace45fc66aee1bf-818695545.us-west-2.elb.amazonaws.com


The load balancer will take some time to provision so use this command to wait until ArgoCD responds:


~$curl --head -X GET --retry 20 --retry-all-errors --retry-delay 15 \
  --connect-timeout 5 --max-time 10 -k \
  https://$ARGOCD_SERVER
curl: (6) Could not resolve host: acfac042a61e5467aace45fc66aee1bf-818695545.us-west-2.elb.amazonaws.com
Warning: Problem : timeout. Will retry in 15 seconds. 20 retries left.
[...]
HTTP/1.1 200 OK
Accept-Ranges: bytes
Content-Length: 788
Content-Security-Policy: frame-ancestors 'self';
Content-Type: text/html; charset=utf-8
X-Frame-Options: sameorigin
X-Xss-Protection: 1


The initial username is admin and the password is auto-generated. You can get it by running the following command:


~$export ARGOCD_PWD=$(kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d)
~$echo "ArgoCD admin password: $ARGOCD_PWD"


Log in to the Argo CD UI using the URL and credentials you just obtained. You will be presented with a screen that looks like this:


argocd-ui


Argo CD also provides a powerful CLI tool called argocd that can be used to manage applications.


info
For the purpose of this lab, argocd CLI has been installed for you. You can learn more about installing the CLI tool by following the instructions.


In order to interact with Argo CD objects using CLI, we need to login to the Argo CD server by running the following commands:


~$argocd login $ARGOCD_SERVER --username admin --password $ARGOCD_PWD --insecure
'admin:login' logged in successfully
Context 'acfac042a61e5467aace45fc66aee1bf-818695545.us-west-2.elb.amazonaws.com' updated